[postgis-devel] [PostGIS] #397: Defect in within function

PostGIS trac at osgeo.org
Fri Jan 29 10:36:45 PST 2010


#397: Defect in within function
-------------------------+--------------------------------------------------
  Reporter:  svenanders  |       Owner:  pramsey
      Type:  defect      |      Status:  new    
  Priority:  medium      |   Milestone:         
 Component:  postgis     |     Version:  1.4    
Resolution:              |    Keywords:         
-------------------------+--------------------------------------------------
Comment (by pramsey):

 There is a slight sliver of the small geometry that extends beyond the
 bounds of the large one:
 {{{
 select st_astext(st_difference(b.geom, a.geom)) from
 (select geom from boundary_test where id = 51529) a,
 (select geom from boundary_test where id = 158057) b;
 }}}
 {{{
  POLYGON((
 10.3251428466302 53.4497880952386,
 10.3250776 53.4498083,10.3251442 53.4497893,
 10.3251428466302 53.4497880952386))
 }}}
 Replace the '=' with ST_Equals in your test matrix above to get a more
 reliable test.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/397#comment:1>
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